﻿/*
 * Copyright (C) 2012 TheLionsRoar <thelionwillalwaysroar@gmail.com>
 * Copyright (C) 2012 Jedrix <jedrix2454@gmail.com>
 * 
 * This file is part of the LEO Game Library.
 * 
 * LEO is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * LEO is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 * 
 * You should have receieved a copy of the GNU General Public License
 * along with LEO. If not, see <http://www.gnu.org/licenses/>.
 */
using System;
using System.Collections.Generic;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;

namespace LEO.Framework {
    public class Scene : Element {
        private List<Drawable> contents;
        private Camera currentCamera;

        public List<Drawable> Contents {
            get { return contents; }
            set { contents = value; }
        }

        public Camera CurrentCamera {
            get { return currentCamera; }
            set {
                currentCamera = value;
                Camera.CurrentCamera = value;
            }
        }

        public Scene(Camera camera) {
            Contents = new List<Drawable>();
            CurrentCamera = camera;
        }

        public override void Update(GameTime gameTime) {
            CurrentCamera.Update(gameTime);

            foreach(Drawable d in Contents) {
                if(d.Delete) {
                    Contents.Remove(d);
                } else {
                    d.Update(gameTime);
                }
            }

            base.Update(gameTime);
        }

        public void Draw(SpriteBatch spriteBatch, GraphicsDevice device) {
            spriteBatch.Begin(SpriteSortMode.Immediate, BlendState.AlphaBlend, null, null, null, null, CurrentCamera.GetTransformation(device));

            foreach(Drawable d in Contents) {
                d.Draw(spriteBatch);
            }

            spriteBatch.End();
        }
    }
}
